Fallout may refer to several things:
- Episodes
- "Fallout", the fourteenth episode of the first season of The Flash, and the fourteenth episode overall.
- "Fallout", the first episode of the sixth season of Arrow, and the one-hundred-sixteenth episode overall.
- "Fallout", the second episode of the fourth season of Supergirl, and the sixty-seventh episode overall.
- "Anti-Hero", the seventh episode of the second season of Superman & Lois, and the twenty-second episode overall. This episode was previously titled "Fallout".
- Characters
- Neil Borman, a meta-human with the power to generate radiation from his body.
- Other
- "Fallout", a song on Arrow – Original Television Soundtrack: Season 6.